3x3x48 White Square Mailing Tubes 25-Pack M3348
$94.28
/ bundle of 25$3.77 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
3" × 3" × 48"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 3" × 3" × 48" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 25 |
| Order in multiples of | 25 |
| Bundle weight | 15.44 lb |
| Outer carton (shipping) | 57.0 × 17.0 × 3.0 in |
| LTL freight class | Class 125 |
| SKU | M3348 |
About this item
SKU M3348 — 3" × 3" × 48", ECT-32-B Corrugated, White. Sold as a bundle of 25, shipped from US warehouses.
3x3x48" white mailers in paper stock, packed 25 per pack (SKU M3348); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; closes with tape or the built-in flap. Order by the pack of 25.
Common questions
Why choose square tubes over round mailing tubes?
Square tubes eliminate rolling during transit, reducing packing time and product damage. They stack efficiently on pallets, saving warehouse space and shipping costs while providing protection for rolled items.
What is ECT-32-B corrugated material?
ECT-32-B is an edge crush test rating indicating 32 pounds per inch of corrugated strength. This material meets ISTA and shipping standards for medium-to-heavy-duty protection across domestic and international shipments.
Do these tubes require tools or adhesive to assemble?
No. These one-piece tubes fold together by hand without tape, glue, or equipment. Assembly takes seconds, making them ideal for high-volume shipping operations.
Are these tubes USPS and carrier-compliant?
Yes. These white corrugated square tubes meet UPS, FedEx, and USPS size and material requirements for Priority Mail and parcel shipping programs.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.